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Give your LangChain agent a data tool that says "I can't verify that" instead of guessing

Give an agent a database tool and ask it about last quarter's revenue. Most of the time you get a good answer. Sometimes the tool comes back empty, or with something the agent doesn't quite understand, and the agent does what language models do best: it writes a plausible sentence with a plausible…

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  1. 2026-11-11 12:08 · DEV Community — AI
    Give your LangChain agent a data tool that says "I can't verify that" instead of guessing

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